Apparatus for attaching heels to lasted shoes



Feb. 20, 1934. W A THUM APPARATUS Fon ATTACHING HEELS To LASTED SHOES Filed Dec. 5, 1931 3 Sheets-Sheet l .d 7' To P/vi/ Feb. zo, 1934. w A THUM 1,947,666

APPARATUS FOR ATTACHING HEELS TO LASTED SHOES Filed Dec. 5, 1931 3 Sheets-Sheet 2 @Trop/vir Feb. 20, 1934. w. A. THUM APPARATUS FOR ATTACHING HEELS TO LASTED SHOES s sheets-sheet 5 Filed Dec. 5, 1931 @fr0/@vir Patented Feb. 20, 1934 UNITED STATES APPARATUS FOR ATTACHIN G HEELS TO LASTED SHOES Walter A. Thum, St. Louis, Mo., assignor to United Shoe Machinery Corporation,` Patel-som. N. J., a corporation of New Jersey Application December 5, 1931. Serial No. 579,180

22 Claims.

This invention relates generally to shoe manufacture, and has more particular reference to a new and novel apparatus for attaching heels to lasted shoes.

Heretofore, so far as I am aware, heels have been appiied to shoes in two steps or stages widely separated in the shoe-manufacture process, that is to say, an initial step during which the last is in the shoe, and a final step during which the last is removed from the shoe.

Such division of the heel-attaching process has been necessitated, firstly, by reason of the shoeconstruction requirement that the last remain in the shoe during the several .so-called heel-finishing operations and, secondly, by the heretofore practical impossibility of nailing the heel to the shoe without first removing the last therefrom, it being borne in mind that the heel-securing nails are properly driven from the inside of the shoe outwardly into the heel.

The mos* immediate source of difficulty in the foregoing procedure resides in the hence unavoidable necessity of initially attaching the heel to the shoe while the last is contained therein, thus, heretofore, limiting the heel attaching means to an adhesive applied between the heel and the heel-seat or" the shoe.

Under such condition the shoe manufacturer is compelled to suspend operations on the shoe-assembly while the adhesive is drying, or, else, employing such accessory devices, altogether foreign both to the shoe, per se, and the machinery ernployed for the manufacture thereof, as will suffice for supplying the deficiency in strength of the adhesive until the latter has hardened, such devices requiring two operations, one for their attachment to the shoe assembly, and the other for their removal therefrom, and hence involving by their use, both, a loss of time, and an expense for material not a part of the finished shoe.

With the foregoing in mind, my invention has for its prime object the provision of a new and novel apparatus, including an improved form of last in connection therewith, adapted, for heelattaching purposes, to be employed in connection with a lasted-shoe at the initial or adhesively heel-applying stage of the shoe-manufacture process, for establishing an ecient and permanent metallic connection between the heel andthe shoe which becomes a part or" the finished shoe structure, and entirely avoids the use of estraneous temporary securing devices on the shoeassern ly during the manufacture of the shoe.

ind with the above and other objects in view, my invention resides in novel features of form, construction, arrangement and combination of parts hereinafter described and pointed out in the claims.

In the accompanying drawings (three sheets), Figure l is a side elevational view o a heel- (Cl. l-32) attaching apparatus of my invention, showing a shoe-assembly mounted therein in fastening receptive-position, the particular shoe-assembly shown including a so-called spike or Louis-heel;

Figure 2 isl a fragmentary enlarged front View of the nail-setting operative mechanism of Figure l, other parts being removed;

Figure 3 is a sectional View taken approximately along the line 3--3, Figure 1;

Figure 4 is an enlarged fragmentary detail view of the self-adjusting presser-foot;

Figure 5 is a fragmentary front Vview ofzthe clamp-head carriage and its carried presser-footplunger, other parts being removed; y

Figure 6 is a rear View, partly broken away and in section, of the nail-settingmechanism of the machine, other parts thereof being removed;

Figure '7 is a side elevational View, partly in section, of Figure 6;

Figure 8 is a bottom inverted plan-view, partly in section, of the bed-plate and its carried apparatus;

Figure 9 isan enlarged fragmentary side sectional view of a portion of Figure 1, showing the self -equalizing clamping members of the-machine in co-operation with a shoe-assembly having a so-called spike or louis-heel, the nail-setting mechanism being shown in nal nail-driven position andthe nail being set in heeland rthev sole of the shoe;

Figure 10 is a fragmentary front elevational detail view of the presser-foot of Figure 4;

Figure l1 is an enlarged fragmentary partly sectional View of the shiftable last-support o Figure 2; y

Figure 12 is enlarged fragmentary side elevational partly sectional view of the co-operating clamping mechanism of Figure 1 in co-operation with a shoe-assembly including a low or so-called Cuban-heel, other parts of the machine being removed;

Figure 13 is a fragmentary enlarged front-view of the nail-setting mechanism with the parts shown in final nail-driven position .corresponding to Figure 9, the upper portion of the shoe-assembly being broken away and other parts removed.

Referring now more in detail and by reference characters to the drawings, which illustrate a preferred embodiment of the invention, the main supporting frame A of the machine includes a licor-plate l and upstanding standards-2 rigidly supporting, at a convenient elevation above the iloor, a horizontal bed-plate 3. Fixed to and upstanding from the rear portion of the bed-plate 3 is a bracket 4 providing irontwise presented rearwardly inclined dove-tailed ways 5, for reciprocably supporting a clamp-head B, presently to be more particularly described, the head B, however, including suitably formed members for slid- Vself-adjusting presser-foot 3l having a lscored bottom :tace for heel-engaging purposes ingly engaging the ways 5, as best seen in Figure 3.

Normally, the clamp-head B is yieldingly supported in elevated position on the bracket fi by means of a suitable gravitationally acting inember or Weight 6 suitably co-operating with the clamp-head B by means of a cord '7 trained over a pulley 8 rotarily mounted at the top of the bracket 4, the ways 5 having suitable stops 5 for limiting the upward movement of the head B, as best seen in Figure 1.

For heel-mounting purposes, however, the head Bis adjustably shifted on the bracket 4 lior movement towards the bed-plate 3 by means of a pedal-operated shifting mechanism, which includes a plunger 9 rmly connected to the head B for depending therefrom slidingly in and through a split-housing 100 depending from the bed-plate 3, the housing 100 having eo-operating ears engaged by the suitably threaded end of a clamp-shaft 101 extended suitably beyond the edge of the bed-plate 3 and provided with a handle 102, as best seen in Figure 8.

The plunger is resiliently connected by means of a tensional member or spring l0, with a nooradjacent foot-lever or pedal 11, preferably pivotally supported from the rear end of the iioorplate 1 for projectin(y forwardly through and from the frame A conveniently for foot-manipulation purposes by the operator of the machine.

The lever 11 may be releasably latched in depressed position by means of a spring-influenced pawl l2 latchingly engageable with a detent 13 upstanding from the door-plate 1, the pawl i2 being operably connected for latoh-releasing puri poses with a toe-lever 14 pivotally supported on the lever 11.

Projecting forwardly from the head B rightangularly to the ways 5, is a pair of transversely spaced arms 15, the inner faces thereof being suitably longitudially channeled providing upper and lower opposing ways 16, i7, respectively, the lower ways 17 being dove-tailed in shape and provided with detachable bottoni plates 18, 18.

Including a body portion 19 suitably formed for sliding co-operation with the ways i6, 17, is a carriage C having in'terrnediately threaded therein a side-projecting clamping-stud 20 working in and through a longitudinal slot 21 provided in one of the arms 15, the stud 2Q carrying a handle 22 adapted for carriage-locking purposes for hub-wise impinging of the arm 15, as best seen in Figure 5.

Reciprocable in and through forward end of the carriage C is a rack-plunger 23, the end of the body-member le having a split hub 2 upstanding therefrom Vfor embraci' the plunger 23 and carrying co-operating lugs 25 in which is suitably mounted and threaded a clamping stud 25 provided with a handle 2S, the latter for plunger-clamping purposes having hub-wise impingement with one of the lugs 25. On the upper projecting end of the plunger 23 is a setcollar 27 impingeable with the hub 24 for limiting the downward movement oi the plunger, the latter being guided against rotation in the carriage by means of a key 28 suitably mounted in the carriage for sliding (3o-operation with a way 29 longitudinally provided in the plunger Shiftably supported for `osoiiiation on and freni Va depending rounded nose-piece 30 projecting from the end of the 23 is a s suitably and a toothed or serrated arcuate upper face concave' to and for locking co-operation with a complementary toothed iace provided on the rounded end of the nose-piece 3G. The foot 3l is suitably provided with upstanding side members 3l for embracing the nose-piece 3G, and carrying a transverse pin-bolt 32 working in a longitudinal slot 33 provided in the nose-piece 3G, a spring or like compressive member 34 being mounted in a hole above the pin 32 for normally spacing the foot 31 ior freely oscillating on the nosepieoe 3o, as est seen in Figure e. The ioot 31 may ii desired be locked in predetermined position by means of nuts 32 threaded on bolt 32.

1ivotally mounted in a suitably downwardly opening chamber provided in the rear portion oi' the carriage-body 19 a half-pinion 35 having meshing co-operation with a series oi rackteeth 36 provided on the rear-face of the plunger Preferably integrally depending from the pinion is an arm 37 yieldingly urged for rearward oscillation in the vertical plane of reciprocation ci the plunger 23 .by means of a tensing member or spring 38 extended bet veen the arm and the head B, as best seen in Figure 1.

Adjustably shiita'ole on the arm E7 is a heelsaddle Se provided with arm-engaging-wingnut lo ior locking the saddle 39 in adjusted position on the arm 3*?. The saddle 39 is provided with a conveXly-forwardly presented grooved face providedY ior heel-engaging purposes with a suitably resilient or felt-like lining 41, as best seen in Figure 9.

Disposed in the vertical plane oi reciprocation of the plunger 23 and approximately, as presently appearing, in vertical alignment therewith, .is a nail-setting mechanism D, including a guideblock 42 extending through, and suitably secured to, the bed-plate 3. The top of the guide-block 42 is suitably enlarged providing an upwardly opening chamber i3 in which is siidingly mounted a vertically shiftaole last-support le having an inclined rearwardly projecting or overhanging last-receptive shelf 45. l

Opening upwardly into the chamber e3 and continuingly extending downwardly through the guide-block 42, is a vertical channel or way 45, in which is reciprocably mounted a normally depressed but vertically shitable slide-block fl? having a depending yoke 48 loosely pivoted to,

for actuation Contact with an arcuate seat on, one

end or" a rockable lever e9, disposed transversely in the machine and having at its other end roller 5G operably engaged with a retracted or neutral portion of heart-cano 5l normally inoperative but adapted when actuated for rocking the lever 49 for upwardly shifting the slide 47 in its way 426, a purpose presently appearing.

The caro 5l a neutral portion b, a nail-driving or rising portion a pressure-releasing or valley portion d, and a recompressing or L merging into the neutral portion presently appearing.

jecting troni the oppoe te sides oi the 53 is Ttabiy engaged vertically disposed rods or bolts 55 extending also shiftably through the superimposed bed-plate 3. Preferably, the yclze 53 has suitable sliding bearing on its cam-adjacent side with a bracket 53 depending from the bed-plate 3 for absorbing the lever-pulling reaction of the roller on the earn 5l.

The depending ends of the bolts 56 carry very strong compression members or springs 57 engaged between the lugs and suitably adjustable bolt-carried rneinbers 55', the springs 57 normally in uncompressed or freely-extended position and the lugs 55 being more or les spaced from the plate 3, as best seen Figure 2.

The upper plate-proiect'ng ends of the bolts 56 have engagement with a transverse-equaliaerbar 58 bea `ing on an upwardly arcuate seat provided on the end 59 of a presently described rockable lever 69, the lever end 59 furnishing a floating support for the bolts 56 liftable from but normally resting upon the plate 3 for suspending the bolts 56 therefrom for supporting the yoke 53 in its described relation with the plate 3. The lever 60 is pivotally, as at 6l. supported in and through t .e adjacent wall of the chainber 43 for projecting its other end into a recess 62 provided in, for pivotal connection of the lever 60 with, the heel-support 44, as best seen in Figure 1l.

Detachably covering the rear of both the chainber 43 and the way 45 is a retainer-plate 64, having in its lower way-covering portion a pair of transversely spaced parallel vertical and downwardly opening slots 65. in which reciprocate respective brackets 66 rearwardly presented from and shiftable with the slide 47.

The horizontal upper faces of the brackets are provided with respectively parallel grooves or pawl-seats 67 complementary to, for rotarily supM porting, the cylindrical hubs of opposingly swingable pawls or dogs 68, the latter being tensionally engaged by suitable 'flat springs or other tensing members 69, for normally ure ng the pawls 68 in co-operative presently-appearing clasping movement swingably one toward the other. The pawls 68 are retained in their seats by means of studs or other suitable members 7() threadedly projecting from the adjacent slide-block 47.

Disposed on the lower end of the inedially depending portion or tongue 7l of the plate 64, for rearward present-ation therefrom between the slide-brackets 66, is a lug 72`carrying a pair of spaced parallel upstanding pawl-*rip-ingers or track-bars 73, disposed in the path of movement of the swingable ends of the pawls 68. the latter normally, that is, when the slide 47 is depressed position, residing on the outside of and below the projecting end of the fingers 73.

Disposed normally in elevated position the fingers 73 is a reciprocable rack-bar 77. provided with a longitudinal way 74 closed at its lower end, which way 74 is slidingly engaged by a key or pin 75 supported from a guide-plate 76 transversely in turn supported and between the upper rear-presented of the bri ciiets 66 for inipingernent by the key 75 of the lower wall of the way 74 for limiting t e movement of the rack 77 relatively to the slide e7. Fr the rackbar 77 depends a plunger 78 guidingly reciprocable also in and through the lug 72, the plunger 78 carrying a coil spring 79 or like tensional member, having its lower end resting in a suitable recess provided in the 72 and with its upper end for normally inipinging d ree iently supporting the rack-bar 77 for depressibie actuation thereof incre or less between the pawltrip-fingers 73.

On its opposite pawl-presented faces the rackbar 77 carries respective series of teeth 80 normally flanked by said fingers 73, but adapted to be claspingly engaged by the pawls 68 as the latter over-ride the suitably curved ends of the iingers 73 on upward shifting actuation of the slideblock 47.

The upper end of the rack-bar 77 is suitably bifurcated or yoked for pivotally supporting the lower end of an inclinably upstanding elongated nail-pin or plunger 8l, suitably reciprocably and swingably mounted in and through an aperture or slot 82 provided in the superimposed last-supporting shelf 45 aforesaid.

Preferably the nail-plunger 81 is possessed of magnetic-qualities, for reasons soon to appear.

At this time I may briefly describe the cam 51 and its actuating mechanism best seen in Figures 5, 8, and 13. The cam 5l is of conventional socalled heart-shape, and is mounted on, for rotation with, a shaft 63, journaled in brackets 84 suitably depending from the bed-plate 3. The shaft 83 is adapted to be intermittently actuated, one revolution at a time, through a suitable conventional form of so-called punch-press" clutch mechanism generally designated at 85, and actuable for such purposes at the will of the operator, by means of a suitably supported foot-pedal 86 having operative connection with the clutch by means of a clutch-rod 87, as best seen in Figure l, the shaft 83 being normally restrained against rotation by a suitable friction-brake 83 yieldable, however, to clutch-actuation of the shaft.

For actuation of such mechanism, I prefer to provide a motor 88 or other prime-mover means having operative connection as at 89 with a countershaft 90 journaled in a bearing 91 depending from the bed-plate 3 and carrying a pinion 92 meshing with a gear 93 rotarily mounted on the discontinuously rotating shaft 83 of the clutch 85 (Figures l and 8).

One form of shoe-assembly, adapted to be employed in connection with my invention, fragmentally shown in detail in Figure 9, and I may here state that the method of attaching a heel to a shoe which my instant invention is designed to accomplish, is more fully set forth in my copending application for Letters Patent for method of attaching heels to shoes, filed March 20,

1930, Serial No. 437,548, to which reference is l" hereby made.

Sumce it hence to say that, for the purposes of my invention, the shoe-assernbly includes a shoe upper E already made and ready for the attach inent of the heel F thereto, the upper E being of any material, size, or shape. and including of the usual insole 94 and outsole 95. The heel portions of the insole are usually reinforced by a fiber-piece 9i' and disposed between this and the outsole is a filler 96 usually of cork or like readily conipressible material, the edges 96 of the shoen upper E being pulled into marginal overlapping engagement with the ber piece 94, the outsole 95 partially in turn overlapping the upper-edges 96.

The heel-pcrtion of the outer sole 95 is cut away or trimmed for providing a heel-seat conforming as nearly as possible to the contour of the heel F,

CSD

however, as this step is usually performed by copperative disposition to fit the heel-seat of the out-.sole 95 for rirowise engaging the adjacent pulled-over inargins 96 of the upper E; this iit should be as snug as possible for enhancing the appearance of he shoe, for increasing the strength ci the attachment of the heel on the shoe, and in order that the adhesive ther oetween, if used, shall most efficiently perform its intended function.

For the purposes of niy invention, the shoelast G- is provided with a way or channel 98, extending through the top and at the rear of the last-cone 99, or reception of the nail-plunger 8l,

being directed for nail-driving purposes suitably through the bottom of the last approximately at the medial por on of the heel-cup 97 or" the shoe-mounted r' as shortly appearing.

In describing th use and operation oi' roy invention, it will horns in i'oind that the inachine is preferably employed at an intermediate stage oi shoe-manufacture, the upper E having been foi-ined on and containing the last G the heel-seat also formed on the sole of the upper. I have found the operation now to be described :nay be accomplished with most facility and dispatch if the shoe-assembly be held by the operin inverted po4 tion, ence, to avoid unnecessary manipulations of e shoe-assembly,

further, to provide for easiest visual inspection of the position of on the shoe during nail `ation, l provide for mounting the shoe-assembly -n the machine in such inverted pos' on, that is, with the sole of the shoe in the vision of the operator.

The operator holds the previously prepared upper and last assembly, ELL-G, upright with one hand, while, with the other he a nail, as H, point foremost into the last-channel 98, and then, inverting the assembly ll--G over the plunger 81, deftly inserts the latter into the last channel 9S for magnetically holding the nail H upstandingly therein.

The operator 'then brings the front edge of the last-cone 99 into rocking engagement .vith, forwardly inch ry E--G on, the support Lie. A suitable adhesive being applied to the cup 9'? of the heel or to heel-seat of he shoe, or both if des d, the' operator places heel neatly and precisely on, with theheelo opposing, the heel-seat of the ioe, and rn Is the y rearwardly @il the lr le unt-.. the plunger Si, swi ging in shoe guiding manner rearwardly in the slot inipinges the rear wall of the latter for disposing the plunger in approximately vertical position, the plunger 8l penetrating the last-channel QS until the plunger-impelled nail il pointwise against the inner-sole 94 of the shoe,

" en in Figure l.

The extent to which the plunger 8l will penelast depends upon the length of the H .nd the depth of the last-cone 99, which varies, of course, with different and makes or shoes. For initially conforming its nail-setting position to such variations in the last, the plunger 8l, after impinolng its carried nail H with the insole of the shoe, is depressed troni its normally elevatedv position, yieldingly upon the spng T9, the rack-bar 77 correspondingly downwardly shifted between the lingers 73. At this time the operative, still holding the heel F in place on the shoe-assembly, steps on the pedal-lever ll i'or causing the clamphead B descend obliduely, that is to say, both downwardly and at the same time forwardly, to-

wards the shoe assembly.

I may here orieiiy state that the carriage C is adjustably mounted on the arm l5 o the clamphead IS for initially setting or adjusting the machine for the several various styles and types of heels F, the carriage C being normally clamped in such predetei uned or adjusted position on the clamp-head B, the plunger 23, however, being uncla ed or loosened in the carriage C for purposes presently appearing.

Such descent or" the clamp-head E brings the presser-foot Si oscillatably into yielding engagewith the end or liit or" the heel F, whereby the foot Si is seli-adjustingly tilted to the angle of the heel-end, the plunger 23 thereafter coinpressing the sp 34, for impinging the plungertoothed-end lo zingly h the co-operating tothed-ace of the so-tiited ootl.

As the clamp-head B continues its downwar movement, the carriage C is shifted likewise on the heel-pressing plunger 23, the carriage-supported pinion 35 having rolling meshing co-operation with the plunger-rack 36 for forwardly swinging the pinion carried arm 37 :for actuating the previously suitably set or positioned saddle 39 in a curvilinear plane, intersecting the plane of movement of the plunger 23, until the saddlecarried felt portion l1 impinges the rear face of the heel F. l

On further movement of the clamp-head B the co-operably connected presser-foot 31 and saddle 39 have pressure-equalizing engagement with the F on respective sides of a preferred line or clamping-pressure action, as indicated at in Figure which passes through the forward half of the heel-seat of the shoe approximately right-angularly to the latter in preferablyA parallel relation with the direction oi? inovernent of the clamp-head B, for holding the heel in the position previously determined by the operative in assembling the heel on the shoe.

As the clamp-head E thus engages the shoeassembly the last-support 'all shifts downwardly its chamber 43 for rocking the lever 50 until its bolt-carrying end 59 is spaced from the top face of the hedplate 3 for iinpinging the holtsuspended yoke-lugs 55 against the bottom face of the plate 3, the lever 60 being thus disposed for oscillation in either direction on its pivot 61, as best seen in Figure 11.

Thereafter', the pedal-spring 1D yields to nal fixed for restraining the heel against movement Y in the machine.

The operator then steps on the pedal 85 for actuating the clutch 85 for effecting a single revolution of the cam-shaft 83, the cain 5l correspondingly oscillat .ig the lever i9 for reciprocation of the slide 47 in its ways e6.

At the initial-lower position Vor" vmovement of the slide 47, the pawls 68 each slidingly engage the respectively adjacent linger 73 in widely spaced apart position, but on upward shifting actuation oi the slide 4'? responsively to co-action of the roller 59 with the nail-driving portion b 0I" the caro 5l. the slide-carried pawls 68 override the end or" the lingers 73 for swingable aotuation of said pawls 68, under urging of the springs 69, into mutually approaching Vgripping cci-operation with the toothed faces of the rack-bar 77.

The pawls 68 being now in actuative engagement with the rack-bar 77, further upward movement of the slide 47 causes the rack-bar carried plunger 81 to drive the nail H successively through the shoe inner sole 94, liber-piece 94', ller 96, and outer sole into the heel F, with a nail-driving line of pressure action obliquely disposed to the clamping-pressure line of action of the abutment-opposed clamp-head B until the head of the nail H is in contact with the innersole 94.

At this time may be particularly pointed out that, temporarily, and While in the machine, the last G provides a foundation for the shoe-assembly which emciently and effectively co-opcrates with the several parts of the machine i'or nail-setting purposes, particularly for supporting the upper in form-retaining position for stretching the heel-seat into the cup of the heel and firmly seating the heel thereon.

In such respect, the length of the nail H is so selected relatively to the stroke of the slide 47 land the throw ci the cam 5l, that, as the nail H is driven home or set in the heel, and the slide 47 comes approximately to a stand-still, the cam 51 is adapted for further actuating of the lever 49, in such wise, that the plunger 81 now becomes resiliently supported on the springs 57, that is to say, the driving-resistance of the nail H, reacting through the lever 49, exerts on the lever-carrying yoke 53 a pull yleldingly resisted by the springs 57, the latter contracting their length responsively to downward swinging movement of the lever 49 about its slide-engaging end as a pivot for depressing the yoke 53 upon the springs 57, as best seen in Figure 13.

Such spring-tensing pull or force is, through the bolts 55, the lever 6e, applied with lifting effect on the last-support 44, for actuation thereof concordantly with the plunger 81, and with a line of pressure action disposed for equalizing the oblique nail-driving line of pressure action, for preventing shifting or" the heel on the shoe during the nail-driving operation.

The last-support 44 becomes in turn resiliently supported for effecting a relatively sustained coinpressive distortion or the last, the heel, and the heel-seat material between the last-support 44 and the abutment clamp-head B by reason or" which structural distortion of the shoe-assembly, the nail H, being undistorted, is caused to penetrate correspondingly into the compressed fibers of the heel in such manner that, on release of the compressive strain in, and ensuing expansion of, the heel-material, the nail resides therein in a highly tensed state, the rim of the heel-cup 97 being forced or grooved into the last-supported shoe-body E around the heel-seat thereof, and the head of the nail compressing the heel-seat material into the cup 97 of the heel until the nailhead is set hush-wise into the insole 94.

As the cam 51 revolves, the roller 50 drops into the valley-cam-portion d for momentarily more or less partially relaxing the pressure on the shoeengaging members, and then as the rolier rides upon the recompressnig-portion e of the cam 51 the foregoing described shoe-assembly compressing operation is repeated.

On completion of a full revolution of the cam 5i the same is disconnected from its actuating mechanism and the several parts are returned to normal position. The operator loosens the plungers 9 and 23, and steps on the pedal-release Figure 12 illustrates the application of a so-called Cuban-heel thereto, from which it will be seen that the saddle 39 is merely slightly shifted on the arm 37 from its position in Figure l, for efficient and eeotive co-operation of the equalizing mem- Y bers of the machine with such low or cubanheeled shoes, substantially' in the manner and for the purposes hereinbei'ore set forth. VHence a further description thereof is omitted.v

My invention is further particularly eiiicient in its intended purpose by reason of the fact that; in

the so-permanently attached heel-and-shoe assembly, the nail H being located in the center of the heel, and the last being in the shoe, the cooperation of the nail, the last, and the shoe,is highly effective for preventing rocking movement of the heel on the shoe after removal of theshoeassembly from the machine.

While in my before mentioned co-pending application for method of securing heels toshoebodies I have described a process for driving a nail through the sole of a lasted-shoe into -a heel pressingly applied thereto, it will be seen that I have effected an improvement in such method in the respect, that, the last, the heel, and the sole of the shoe therebetween are subjected to an additional pressure for compressively distorting the same during the nail-driving operation.

It will be seen that my invention accomplishes its objects, and it will be understood that changes and modifications in the form, construction, arrangement and combination of parts may be made substituted for those herein described and shown without departing from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure by Letters-Patent is,

l. In apparatus for attaching a heel to a lastedshoe, the combination comprising means for setting a nail through the sole of the shoe into the heel, and means responsive to nail-setting operation for compressing the heel, the last, and the sole together.

2. In apparatus for attaching a heel to a lastedshoe-upper, the combination with a last supportv of last-guided means for setting a nail through the sole of the upper into the heel, said means including a member yieldingly supported relatively to the last-support for initially disposing the nail pointwise against the insole of the upper.

3. In apparatus for attaching a heel to a lastedshoe-upper, in combination, a last-support clamping means engaging the heel and the last, and last-guided means for setting a nail through the sole of the upper into the heel, said latter means including a nail-driving member shiftable relawith the insole of the upper, and means including clasping members actuable for engaging said nail-driving member in shifted position for naildriving-actuation thereof.

6. In apparatus for setting a nail in a shoe, in combination, nail-carrying means including a rack shiftable responsively to engagement of the nail With the Work, and means including normally spaced pawls operable for actuative engage- 1 ment With said rack in nail-shifted position for driving the nail in the Work.

7. In apparatus for attaching a heel to a lastedshoe, in combination, nail-setting means including a lever and a member actuable thereby for setting a nail through the sole of the shoe into the heel thereof, and means including a shiftable last-support having resilient connection with the lever for compressing the heel, the last, and the sole of the shoe together.

8. In apparatus for attaching a heel to a lastedshoe, in combination, nail-setting means including a member actuable for setting a nail through the sole of the shoe into the heel thereof and means including a last-support shiftable responsively to nail-driving resistance of the nail-setting member for compressing the heel, the last, and the sole of the shoe together during the nail-setting operation.

9. In apparatus for attaching a heel to a shoe, clamping means including a head having a freely tiltable member supported thereon for shiftable movement of said member responsively to engagement thereof with the Work, and means on the head engageable by said member when in work shifted position for retaining the same in tilted co-operation With the Work.

1G. In apparatus for attaching a heel to a lasted shoe, clamping means including a support and a member carried thereby for engaging the cone of the last, a clamp-head shiftable on the support relatively to said last-engaging member rightangularly to the heel-seat of the shoe, and means for locking the head in shifted position on the support. l 11. In apparatus for attaching a heel to a lasted-shoe, in combination, clamping means operable along a line of clamping pressure intersecting the forward half of the heel-seat for retaining the heel on the shoe, nail setting means operable along line of nail-driving pressure obliquely disposed to the clamping pressure line for driving a nail through the sole of the shoe into the heel thereof, and last-lifting means operable along a line of pressure-action disposed for equalizing said nail-driving line of pressure for preventing shifting of the heel during the nail driving operation.

12. In apparatus for attaching a heel to a lasted shoe, in combination, nail-setting means including a member shiftable for driving a nail through the sole of the shoe into the heel thereof, clamping means including a last-supporting member shiftable for compressing the last, the heel and the sole of the shoe together during the nailsetting operation, and means including a poweroperable member co-operably connecting the nail-setting member and the last-supporting member for effecting concordant actuation thereof.

13. In apparatus for attaching a heel to a lasted-shoe, in combination, a last-support including a last-lifting member, a nail-driving means cooperable with the last-lifting member for setting a nail through the sole of the shoe into the heel thereof.

lli. Those steps in the attachment of a heel to a shoe body which consist in disposing a last Within the shoe-body and a heel upon the heelseat of the shoe, subjecting the last and heel to clamping pressure, and then while the last is within the shoe eriving a nail through the sole of the shoe into the heel under an additional clamping pressure applied thereto responsively to nail-driving operation.

l5. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means forsetting a nail through the sole of the shoe into the heel, and mechanism operable by and with the nail-setting means for compressing the heel and the lasted shoe together.

16. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means including a member actuable for setting a nail through the sole of the shoe into the heel, and mechanism operable responsively to actuation of said member for compressing the heel and the lasted shoe together.

17. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means for setting a nail through the sole of the she-e into the heel, and mechanism including a member shiftably responsive to actuation of the nail-setting `means ior compressing the heel and the lasted shoe together.

18. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means for setting a nail through the soie of the shoe into the heel, clamping means, and mechanism including a shiftable member (5o-operating with the clamping means and actuable responsively to operation of the nail-setting means for compressing the heel and the lasted shoe together.

le. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means for setting a nail through the sole of the shoe into the heel, clamping means including a resiiiently supported member, and mec. a11isin having connection with said member for yieldingly engaging the same responsively to operation of the nailsetting means for compressing the heel and the lasted shoe together.

20. Apparatus for attaching a heel to a lasted shoe comprising, in combination, a nail setting plunger, clamping and last lifting means resiliently connecting the clamping means with the plunger for setting a nail through the sole of the shoe into the heel.

21. In an apparatus for attaching a hei to a lasted-shoe, in combination, nail-driving means, clamping means, and means including a yieldable support co-opcrable both with the clamping means and the nail-driving means for compress- ,1

ing the heel, the last and the sole together responsively to actuation of the nail-driving means.

22. In an apparatus for attaching a heel to a shoe, in combination, clamping means including a plunger for engaging the lift of the heel, a swingable arm for engaging theback-face of the heel, and means co-operably connecting the plunger with the arm for swinging movement of the latter responsively to engagement of the plunger with the lift of the heel.

WALTER A. THUM. 

